Patek PhilippePerpetual Calendar 5050 White Gold / Silver RomanREF NUMBER: 5050G-001Patek PhilippePerpetual Calendar 5050 White Gold / Silver RomanREF NUMBER: 5050G-001ModelGrand ComplicationsCase Diameter-Dial Numeral-Movement-Power Reserve-Manufacture Year-Dial Material-Dial Movement Caliber-Case Material-Water Resistance-